The API-650 Standard
The American Petroleum Institute’s API-650 Standard is the most commonly used standard for design and construction of flat-bottom, atmospheric pressure storage tanks. The standard covers sizes ranging from small, shop-built…
ASME Code, TEMA and API Facts
Category: ASME Code, TEMA and API Facts
State Requirements
Although the ASME and NBIC codes are national standards, it is up to each state to pass laws for the requirements for pressure vessels and boilers in that state. As…
Openings near tube sheets
A new requirement was added to the 2019 Edition of the ASME Code in paragraph UHX-4(h), concerning openings adjacent to tube sheets. In exchangers where the tube sheet is welded…
NBIC Repair Types
When repairs are made to code pressure vessels, the National Board Inspection Code (NBIC) classifies them into three categories: alterations, repairs, and routine repairs. Alterations are the most significant type of…
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